The skeleton measured 17 feet (5.2 meters) long. But given the length of its missing parts (including the head), the Steller's sea cow likely measured nearly 20 feet (6 m) when it was alive, or ...

Then, the sea cow was picked apart by a tiger shark, which has narrow, non-serrated teeth. Differentiating between marks of active predation and scavenging can be challenging, but according to the ...

The rare skeleton, loaned from the San Diego Natural History Museum to SeaWorld San Diego in 1966, is believed to be one of, if not the only, full skeleton of a vaquita available in the U.S.

Prior to this find, the last full skeleton of a Steller’s sea cow was found on the same island in 1987 and ended up at the Aleutian Museum of Natural History in Nikolskoye, Traverso reports.

An unusually complete — albeit headless — skeleton of a Steller's sea cow was recently found in northeast Russia. For instance, researchers aren't sure how many vertebrae (the bones that make ...

A fossil reveals how a now-extinct species of dugong was swimming in the sea about 15 million years ago when it was preyed upon by a crocodile and a tiger shark.

An unusually complete — albeit headless — skeleton of a Steller's sea cow was recently found in northeast Russia. For instance, researchers aren't sure how many vertebrae (the bones that make up the ...